Influence of Eu3+-Doped on Phase Transition Kinetics of Pseudoboehmite
The influence of Eu3+-doped on phase transition kinetics of pseudoboehmite has not been reported in the literature. Through dropping Eu(NO3)3 into pseudoboehmite colloidal solution, pseudoboehmite xerogel was produced using spray pyrolysis. The influence of Eu3+-doped on the mechanism of pseudoboehm...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/740625 |
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| _version_ | 1832548886070165504 |
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| author | Fuliang Zhu Yanshuang Meng |
| author_facet | Fuliang Zhu Yanshuang Meng |
| author_sort | Fuliang Zhu |
| collection | DOAJ |
| description | The influence of Eu3+-doped on phase transition kinetics of pseudoboehmite has not been reported in the literature. Through dropping Eu(NO3)3 into pseudoboehmite colloidal solution, pseudoboehmite xerogel was produced using spray pyrolysis. The influence of Eu3+-doped on the mechanism of pseudoboehmite phase transition kinetics has been calculated and analyzed by TG/DSC, XRD, and Kissinger equation. Part of Eu3+ ion formed compound EuAl12O19, which existed between α-Al2O3 grains. Bulk diffusion of Al3+ was prevented from compound EuAl12O19. Therefore, phase transition kinetics rate of θ-Al2O3 → α-Al2O3 was slowed down, causing an increase of phase transition activation energy and elevation of phase transition temperature. |
| format | Article |
| id | doaj-art-5cfcce3ff2c6411b8408929a019ea14e |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-5cfcce3ff2c6411b8408929a019ea14e2025-02-03T06:12:47ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/740625740625Influence of Eu3+-Doped on Phase Transition Kinetics of PseudoboehmiteFuliang Zhu0Yanshuang Meng1School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaSchool of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaThe influence of Eu3+-doped on phase transition kinetics of pseudoboehmite has not been reported in the literature. Through dropping Eu(NO3)3 into pseudoboehmite colloidal solution, pseudoboehmite xerogel was produced using spray pyrolysis. The influence of Eu3+-doped on the mechanism of pseudoboehmite phase transition kinetics has been calculated and analyzed by TG/DSC, XRD, and Kissinger equation. Part of Eu3+ ion formed compound EuAl12O19, which existed between α-Al2O3 grains. Bulk diffusion of Al3+ was prevented from compound EuAl12O19. Therefore, phase transition kinetics rate of θ-Al2O3 → α-Al2O3 was slowed down, causing an increase of phase transition activation energy and elevation of phase transition temperature.http://dx.doi.org/10.1155/2013/740625 |
| spellingShingle | Fuliang Zhu Yanshuang Meng Influence of Eu3+-Doped on Phase Transition Kinetics of Pseudoboehmite Advances in Materials Science and Engineering |
| title | Influence of Eu3+-Doped on Phase Transition Kinetics of Pseudoboehmite |
| title_full | Influence of Eu3+-Doped on Phase Transition Kinetics of Pseudoboehmite |
| title_fullStr | Influence of Eu3+-Doped on Phase Transition Kinetics of Pseudoboehmite |
| title_full_unstemmed | Influence of Eu3+-Doped on Phase Transition Kinetics of Pseudoboehmite |
| title_short | Influence of Eu3+-Doped on Phase Transition Kinetics of Pseudoboehmite |
| title_sort | influence of eu3 doped on phase transition kinetics of pseudoboehmite |
| url | http://dx.doi.org/10.1155/2013/740625 |
| work_keys_str_mv | AT fuliangzhu influenceofeu3dopedonphasetransitionkineticsofpseudoboehmite AT yanshuangmeng influenceofeu3dopedonphasetransitionkineticsofpseudoboehmite |